Pergidae
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The Pergidae are a moderate-sized family of sawflies occurring primarily in Central and South America, and Australia, with some 400 species in some 60 genera. Larvae are typical herbivores, with the exception of a few Australian species that are leaf miners on Eucalyptus trees.
The family has no obvious distinctive features throughout its range; only subtle features of the wing venation are truly diagnostic. This family is also unusual in having one species that is the only known wingless Symphytan, vaguely resembling a camel cricket in appearance.